Use mixed package managers for ARM64 Windows CI

- Scoop for ARM64-native packages (cmake, ninja, python)
- Chocolatey for LLVM and Perl (x64 via emulation)
- Manual Ruby install (x64 works on ARM64)

This combination ensures all dependencies are installed correctly on
GitHub Actions ARM64 Windows runners.

🤖 Generated with [Claude Code](https://claude.ai/code)

Co-Authored-By: Claude <[email protected]>

Author: WebKit ARM64 Builder

.github/workflows/build.yml

@@ -254,45 +254,33 @@ jobs:
     runs-on: ${{ matrix.runner }}
     timeout-minutes: 90
     steps:
-      - name: Check available package managers and install dependencies
+      - name: Install dependencies for ARM64 Windows
         run: |
-          Write-Host "=== Checking available package managers ==="
-          
-          # Check what's already available
-          if (Get-Command winget -ErrorAction SilentlyContinue) {
-            Write-Host "WinGet is available"
-            winget --version
-          }
-          if (Get-Command choco -ErrorAction SilentlyContinue) {
-            Write-Host "Chocolatey is available" 
-            choco --version
-          }
-          if (Get-Command scoop -ErrorAction SilentlyContinue) {
-            Write-Host "Scoop is available"
-            scoop --version
-          }
-          
-          Write-Host "=== Processor Architecture ==="
-          Get-WmiObject -Class Win32_Processor | Select-Object Name, Architecture
-          
-          Write-Host "=== Environment Variables ==="
-          Write-Host "PROCESSOR_ARCHITECTURE: $env:PROCESSOR_ARCHITECTURE"
-          Write-Host "PROCESSOR_ARCHITEW6432: $env:PROCESSOR_ARCHITEW6432"
-          
-          # Try to install Scoop if nothing else works
+          # Use Scoop for ARM64-compatible packages
           if (!(Get-Command scoop -ErrorAction SilentlyContinue)) {
-            Write-Host "Installing Scoop..."
             Set-ExecutionPolicy -ExecutionPolicy RemoteSigned -Scope CurrentUser -Force
             Invoke-RestMethod -Uri https://get.scoop.sh | Invoke-Expression
             $env:PATH = "$env:USERPROFILE\scoop\shims;$env:PATH"
             echo "$env:USERPROFILE\scoop\shims" | Out-File -FilePath $env:GITHUB_PATH -Encoding utf8 -Append
           }
           
-          # Install dependencies via Scoop 
-          scoop bucket add main
-          scoop install cmake ninja python ruby perl llvm
+          # Install ARM64-compatible tools via Scoop
+          scoop install cmake ninja python
+          
+          # Install Ruby manually for ARM64 (Scoop doesn't have ARM64 Ruby)
+          $rubyUrl = "https://github.com/oneclick/rubyinstaller2/releases/download/RubyInstaller-3.3.6-1/rubyinstaller-devkit-3.3.6-1-x64.exe"
+          $rubyExe = "$env:TEMP\ruby.exe"
+          Invoke-WebRequest -Uri $rubyUrl -OutFile $rubyExe
+          Start-Process -FilePath $rubyExe -ArgumentList "/VERYSILENT", "/NORESTART", "/DIR=C:\Ruby33-x64" -Wait
+          echo "C:\Ruby33-x64\bin" | Out-File -FilePath $env:GITHUB_PATH -Encoding utf8 -Append
+          
+          # Install Strawberry Perl for x64 (works on ARM64 via emulation)
+          choco install strawberryperl -y --no-progress
+          
+          # Install LLVM via Chocolatey (has ARM64 support)
+          choco install llvm -y --no-progress --version=19.1.4
           
-          # Install vcpkg manually
+          # Install vcpkg
           git clone https://github.com/Microsoft/vcpkg.git C:\vcpkg
           cd C:\vcpkg
           .\bootstrap-vcpkg.bat